CN2876860Y - Mechanical underwater spacing switch - Google Patents
Mechanical underwater spacing switch Download PDFInfo
- Publication number
- CN2876860Y CN2876860Y CN 200620004534 CN200620004534U CN2876860Y CN 2876860 Y CN2876860 Y CN 2876860Y CN 200620004534 CN200620004534 CN 200620004534 CN 200620004534 U CN200620004534 U CN 200620004534U CN 2876860 Y CN2876860 Y CN 2876860Y
- Authority
- CN
- China
- Prior art keywords
- storage tank
- driving stem
- ring seal
- end cap
- pressure hull
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model discloses a mechanical underwater spacing switch, which comprises a pressure bull, an end cap, a driving-stick, an electric switch and a backspring; wherein, the back end inside the pressure bull is provide with a guiding hole with an end communicating with outside; the end cap, with the center provided with a driving-stick holding hole, is mounted at the front end of the pressure bull; with equal front end and rear end diameter and a shoulder positioned in the middle, the driving-stick has a front end tightly held in the driving-stick holding hole and a rear end tightly held in the guiding hole; the electric switch, with a pelleting positioned at a location opposite to the shoulder of the driving-stick, is mounted inside the pressure bull; the backspring is positioned between the end cap and the driving-stick. The utility model adopts a sealing moving framework with automating pressure balance to trigger the electric switch, not only bringing into play the advantages of mechanical spacing switch such as high reliability and easy installation and debugging, but also overcoming impacts of water medium and environment stress, thereby suitable for using in deep water or under high pressure.
Description
Technical field
The utility model relates to limit switch, particularly relate to a kind of simple in structure, easy to use, can be applicable to mechanical underwater limit switch than deepwater field.
Background technology
Subsea equipment that ocean Underwater Engineering and technology are used and instrument and meter usually need to use limit switch to realize the control of system.Limit switch generally can be divided into induction type near switch, optoelectronic switch and mechanical switch.Induction type does not have motion near switch and optoelectronic switch, accomplish underwater sealing easily, be convenient to use under water, but there is following deficiency in the two: be subjected near distance limit near switch, generally switch could effective action in several millimeters scopes, and installation accuracy requires high; Decay because of light when optoelectronic switch uses under water also is subjected to the operating distance restriction, and mixed water environment can't be used.As replenishing of the two, mechanical switch can overcome above-mentioned deficiency, present mechanical type limit switch normally touches electric switch by mechanical motion mechanism and reaches spacing control purpose, but need solve problems such as the sealing of mechanical motion mechanism and electric switch and pressure equilibrium when using under water.Still be not specifically applied at present under water the mechanical type limit switch, therefore, is badly in need of a kind ofly being applied under water, particularly than the mechanical type limit switch appearance of deepwater field.
The utility model content
The purpose of this utility model provide a kind of simple in structure, easy to use, can be applicable to mechanical underwater limit switch than deepwater field.
For achieving the above object, the utility model is taked technical scheme: a kind of mechanical underwater limit switch, and it includes: a pressure hull, its inner rear end is provided with a pilot hole, and the end of this pilot hole is in communication with the outside; One end cap, it is arranged on the front end of described pressure hull, and the center of end cap is provided with a driving stem containing hole, and this driving stem containing hole is coaxial and equal diameters with described pilot hole; One driving stem, its front and rear equal diameters, the middle part is provided with a shoulder, and the front portion of this driving stem closely is placed in the described driving stem containing hole, and the rear portion of this driving stem closely is placed in the described pilot hole; One electric switch, it is arranged on described pressure hull inside, and the position of the corresponding described driving stem shoulder of the compressing tablet of this electric switch is provided with; One back-moving spring, it is arranged between described end cap and the driving stem.
In practical operation, the head of described driving stem is provided with one and presses portion, and described driving stem is provided with external thread near the cylindrical place of head, and this external thread is provided with one and adjusts nut; Described end cap is cylindrical, and its inside is disposed with a back-moving spring storage tank and and adjusts the nut storage tank; Described back-moving spring is located in the back-moving spring storage tank, and one end roof pressure is at the end of back-moving spring storage tank, and other end roof pressure is being adjusted on the nut.
In the above-mentioned mechanical underwater limit switch, the affixed side seal lid that is provided with on the sidewall of described pressure hull, described electric switch is fixed in this side seal and covers; The side seal lid is provided with sealing gasket with the junction of the sidewall of pressure hull.In addition, the rear end face place of described pressure hull is provided with a watertight electric connection, and the junction of watertight electric connection and pressure hull is provided with sealing gasket, and watertight electric connection inside is connected with electric switch by lead.
In the above-mentioned mechanical underwater limit switch, the shoulder at described driving stem middle part and the surface of contact of electric switch compressing tablet are the conical surface; The cylindrical place at described driving stem rear portion is provided with at least one O-ring seal storage tank, is provided with O-ring seal in the sealing circle storage tank.In addition, the junction of described end cap and driving stem is provided with at least one O-ring seal storage tank, is provided with O-ring seal in the sealing circle storage tank; The junction of described end cap and pressure hull is provided with at least one O-ring seal storage tank, is provided with O-ring seal in the sealing circle storage tank.
The utility model is owing to take above design, it has the following advantages: 1, in the utility model, driving stem front portion, rear portion are positioned at the equal diameters of the pilot hole of the driving stem containing hole of end cap and pressure hull, and the pilot hole end is in communication with the outside, therefore in any depth of water, the pressure that the driving stem two ends are subjected to water equates all the time, the pressure self-poise, and it is static that driving stem keeps.2, in the utility model, many places are provided with sealing gasket and O-ring seal, thereby have guaranteed the sealing property of pressure hull fully, and its inside can not intake.3, the utility model has adopted the self balancing seal-moving of pressure mechanism to touch electric switch, advantages such as the reliability height of mechanical type limit switch, easy Installation and Debugging had both been brought into play, also overcome the influence of aqueous medium and environmental pressure, can use under water with in the hyperbaric environment in the big degree of depth.4, the utility model is simple in structure, with low cost, easy to use, helps popularizing.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the A-A cut-open view of Fig. 1
Embodiment
Please as shown in Figure 1 and Figure 2, be a kind of mechanical underwater limit switch provided by the utility model, it mainly includes:
One pressure hull 1, its inner rear end is provided with a pilot hole 11, and the end of this pilot hole 11 is in communication with the outside;
One end cap 2, it is arranged on the front end of pressure hull 1, and the center of end cap 2 is provided with a driving stem containing hole 21, driving stem containing hole 21 and pilot hole 11 coaxial and equal diameters;
One driving stem 3, its front portion 31 and rear portion 32 equal diameters, the middle part is provided with a shoulder 33, and the front portion 31 of driving stem closely is placed in the driving stem containing hole 21, and the rear portion 32 of driving stem closely is placed in the pilot hole 11;
One electric switch 4, it is arranged on pressure hull 1 inside, and the position of the compressing tablet 41 corresponding driving stem shoulders 33 of electric switch 4 is provided with;
One back-moving spring 5, it is arranged between end cap 2 and the driving stem 3.
Specifically, the head of driving stem 3 is provided with one and presses portion 34, and driving stem 3 is provided with external thread 35 near the cylindrical place of head, and external thread 35 is provided with one and adjusts nut 36; In addition, end cap 2 is cylindrical, and its inside is disposed with a back-moving spring storage tank 22 and and adjusts nut storage tank 23; Like this, back-moving spring 5 just can be located in the back-moving spring storage tank 22, and one end roof pressure is at the end of back-moving spring storage tank 22, and other end roof pressure is being adjusted on the nut 36.
In the present embodiment, the also affixed side seal that is provided with covers 12 on the sidewall of pressure hull 1, and electric switch 4 just is fixed on this side seal lid 12, and the benefit of She Zhiing is that side seal lid 12 is demountable like this, thereby is convenient to install and change electric switch 4; In addition, in order to guarantee the sealing property in the pressure hull 1, side seal lid 12 is provided with sealing gasket 13 with the junction of the sidewall of pressure hull 1.In addition, the rear end face place of pressure hull 1 also is provided with a watertight electric connection 14, watertight electric connection 14 also is provided with sealing gasket 15 with the junction of pressure hull 1, and watertight electric connection 14 inside are connected (figure does not show) by lead with electric switch 4, be used for output switching signal.
In the present embodiment, the shoulder 33 at driving stem 3 middle parts is the conical surface with the surface of contact of electric switch compressing tablet 41, and such benefit is to adjust by the tapering of adjusting the conical surface trigger sensitivity of electric switch, certainly, surface of contact can not limited at this for other shapes yet; The cylindrical place at driving stem 3 rear portions 32 is provided with at least one O-ring seal storage tank 37, be provided with O-ring seal 38 in the sealing circle storage tank 37, the quantity of O-ring seal storage tank 37 is specially one in the present embodiment, can certainly increase the quantity of O-ring seal storage tank 37 and O-ring seal 38 according to the difference of use occasion.
In the utility model, end cap 2 is provided with at least one O-ring seal storage tank 24 with the junction of driving stem 3, is provided with O-ring seal 25 in the sealing circle storage tank 24; In addition, end cap 2 also is provided with at least one O-ring seal storage tank 26 with the junction of pressure hull 1, also is provided with O-ring seal 27 in the sealing circle storage tank 26.In the present embodiment, the quantity of O-ring seal storage tank 24,26 specifically is respectively to be one, can certainly increase the quantity of O-ring seal storage tank 24,26 and O- ring seal 25,27 according to the difference of use occasion.
The utility model is installed on the subsea equipment when using, because driving stem front portion 31, rear portion 32 are positioned at the equal diameters of the pilot hole 11 of the driving stem containing hole 21 of end cap and pressure hull, therefore in any depth of water, the pressure that driving stem 3 two ends are subjected to water equates all the time, the pressure self-poise drives 3 bars and keeps static.Try hard to recommend outside under the effect of movable contact splenium 34, driving stem 3 drives adjusts nut 36 compression reseting springs 5 and mobile in adjustment nut storage tank 23, till adjusting nut 36 and being adjusted nut storage tank 23 terminal spacing, in this process, the conical surface of shoulder 33 promotes the compressing tablet 41 of electric switch on the driving stem, make the electrical contact conducting (or disconnection) of electric switch 4 inside, its switching signal passes to control corresponding equipment by the cable that the watertight electric connection connects.Cancel external force, driving stem 3 falls back on reference position under the effect of back-moving spring 5 restoring forces, and electric switch 4 also returns to original state, has so just finished a switch course of work of the present utility model.
Claims (10)
1, a kind of mechanical underwater limit switch is characterized in that, it includes:
One pressure hull, its inner rear end is provided with a pilot hole, and the end of this pilot hole is in communication with the outside;
One end cap, it is arranged on the front end of described pressure hull, and the center of end cap is provided with a driving stem containing hole, and this driving stem containing hole is coaxial and equal diameters with described pilot hole;
One driving stem, its front and rear equal diameters, the middle part is provided with a shoulder, and the front portion of this driving stem closely is placed in the described driving stem containing hole, and the rear portion of this driving stem closely is placed in the described pilot hole;
One electric switch, it is arranged on described pressure hull inside, and the position of the corresponding described driving stem shoulder of the compressing tablet of this electric switch is provided with;
One back-moving spring, it is arranged between described end cap and the driving stem.
2, mechanical underwater limit switch according to claim 1 is characterized in that: the head of described driving stem is provided with one and presses portion, and described driving stem is provided with external thread near the cylindrical place of head, and this external thread is provided with one and adjusts nut; Described end cap is cylindrical, and its inside is disposed with a back-moving spring storage tank and and adjusts the nut storage tank; Described back-moving spring is located in the back-moving spring storage tank, and one end roof pressure is at the end of back-moving spring storage tank, and other end roof pressure is being adjusted on the nut.
3, mechanical underwater limit switch according to claim 1 is characterized in that: the affixed side seal lid that is provided with on the sidewall of described pressure hull, and described electric switch is fixed in this side seal and covers; The side seal lid is provided with sealing gasket with the junction of the sidewall of pressure hull.
4, mechanical underwater limit switch according to claim 2 is characterized in that: the affixed side seal lid that is provided with on the sidewall of described pressure hull, and described electric switch is fixed in this side seal and covers; The side seal lid is provided with sealing gasket with the junction of the sidewall of pressure hull.
5, according to claim 1 or 2 or 3 or 4 described mechanical underwater limit switch, it is characterized in that: the rear end face place of described pressure hull is provided with a watertight electric connection, the junction of watertight electric connection and pressure hull is provided with sealing gasket, and watertight electric connection inside is connected with electric switch by lead.
6, according to claim 1 or 2 or 3 or 4 described mechanical underwater limit switch, it is characterized in that: the shoulder at described driving stem middle part and the surface of contact of electric switch compressing tablet are the conical surface; The cylindrical place at described driving stem rear portion is provided with at least one O-ring seal storage tank, is provided with O-ring seal in the sealing circle storage tank.
7, mechanical underwater limit switch according to claim 5 is characterized in that: the shoulder at described driving stem middle part and the surface of contact of electric switch compressing tablet are the conical surface; The cylindrical place at described driving stem rear portion is provided with at least one O-ring seal storage tank, is provided with O-ring seal in the sealing circle storage tank.
8, according to claim 1 or 2 or 3 or 4 or 7 described mechanical underwater limit switch, it is characterized in that: the junction of described end cap and driving stem is provided with at least one O-ring seal storage tank, is provided with O-ring seal in the sealing circle storage tank; The junction of described end cap and pressure hull is provided with at least one O-ring seal storage tank, is provided with O-ring seal in the sealing circle storage tank.
9, mechanical underwater limit switch according to claim 5 is characterized in that: the junction of described end cap and driving stem is provided with at least one O-ring seal storage tank, is provided with O-ring seal in the sealing circle storage tank; The junction of described end cap and pressure hull is provided with at least one O-ring seal storage tank, is provided with O-ring seal in the sealing circle storage tank.
10, mechanical underwater limit switch according to claim 6 is characterized in that: the junction of described end cap and driving stem is provided with at least one O-ring seal storage tank, is provided with O-ring seal in the sealing circle storage tank; The junction of described end cap and pressure hull is provided with at least one O-ring seal storage tank, is provided with O-ring seal in the sealing circle storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620004534 CN2876860Y (en) | 2006-03-08 | 2006-03-08 | Mechanical underwater spacing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620004534 CN2876860Y (en) | 2006-03-08 | 2006-03-08 | Mechanical underwater spacing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2876860Y true CN2876860Y (en) | 2007-03-07 |
Family
ID=37820097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620004534 Expired - Fee Related CN2876860Y (en) | 2006-03-08 | 2006-03-08 | Mechanical underwater spacing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2876860Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533808A (en) * | 2018-06-15 | 2018-09-14 | 中国海洋大学 | A kind of mechanical triggering method based on pressure differential |
| CN109360749A (en) * | 2018-11-23 | 2019-02-19 | 中国船舶重工集团公司第七0五研究所 | A kind of watertight travel switch applied under deep-marine-environment |
| CN109659184A (en) * | 2018-12-24 | 2019-04-19 | 中国船舶重工集团公司第七0研究所 | A kind of Underwater limit switch |
-
2006
- 2006-03-08 CN CN 200620004534 patent/CN2876860Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533808A (en) * | 2018-06-15 | 2018-09-14 | 中国海洋大学 | A kind of mechanical triggering method based on pressure differential |
| CN108533808B (en) * | 2018-06-15 | 2019-12-31 | 中国海洋大学 | Mechanical triggering method based on differential pressure driving |
| CN109360749A (en) * | 2018-11-23 | 2019-02-19 | 中国船舶重工集团公司第七0五研究所 | A kind of watertight travel switch applied under deep-marine-environment |
| CN109659184A (en) * | 2018-12-24 | 2019-04-19 | 中国船舶重工集团公司第七0研究所 | A kind of Underwater limit switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2876860Y (en) | Mechanical underwater spacing switch | |
| CN203672552U (en) | Pressure transmitter | |
| CN111055988B (en) | Steering engine for wave energy autonomous glider | |
| CN202141511U (en) | Column type weighing sensor | |
| CN201714733U (en) | Servo hydraulic oil cylinder | |
| CN202487810U (en) | Submerged cable connecting device | |
| CN100562832C (en) | Mechanical underwater limit switch | |
| CN202872080U (en) | Circular sealing underwater connector plug | |
| CN208751475U (en) | A kind of magnetic towed carbon membrane linear displacement sensor with high sealing performance | |
| CN203218812U (en) | Great-depth isolation type oil pressure compensation junction box | |
| CN2681309Y (en) | Inductive float liquid level switch | |
| CN204554028U (en) | Electric valve aperture photoelectric detection system | |
| CN201772829U (en) | Digital display micrometer for absolute position measurement | |
| CN212539057U (en) | Synchronous linkage carbon film linear displacement sensor with waterproof performance | |
| CN212359718U (en) | Simple underwater control module suitable for shallow water Christmas tree | |
| CN203275716U (en) | Novel optical fiber connector | |
| CN209666397U (en) | A kind of floating pressure head device | |
| CN204141073U (en) | A kind of submerged pump cable sealing structure | |
| CN208635710U (en) | A kind of dragline type linear displacement transducer | |
| CN210426692U (en) | NB-IOT intelligent wireless liquid level transmitter | |
| CN112304475A (en) | Controllable contact pin type pressure sensor for pressure detection | |
| CN219498329U (en) | Mechanical pressure switch | |
| CN201973312U (en) | Water saving device | |
| CN204289995U (en) | Automotive wire bundle 38 hole connector sealing plug positioning tool | |
| CN208568151U (en) | A kind of floating self-regulation plugging structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070307 Termination date: 20100308 |